Flag the post in question.
Some SO users are just quite ... blunt by nature while trying to be helpful. Think about it for a moment:
- Some programmers have somewhat abrasive personalities
- Some programmers speak English as a second (or third) language
When you combine these factors, you sometimes don't know what to think. In that case, involve a moderator.
Col. Shrapnel is making a very valid point in that discussion, and that's the only reason that I did not just remove the comments. Often times, people take meta code snippets as gospel and employ them, without actually understanding what they are doing. He's been screaming about this since he's been a member, and will continue to scream about it until he can't scream anymore. In the scope of SQL injection, I tend to err on the side of caution. The comments weren't really that antagonistic and I'm not going to nuke a conversation over an answer to a security issue unless there's no way to salvage it.
I'm not digressing, I'm reinforcing my point. Let the site moderators help you when you think you've run into something like this. If you encounter someone with a high reputation score that is seemingly difficult, there's a very good chance that we've encountered them many times before.
Involve us as soon as you see things turning into a boxing match and stop interacting with that person until we intervene.
How to flag
Use the 'flag' link on the question or answer that contains the argument, and tell us what's going on:
Give us as much detail and background as possible, then send the flag. We will look into it, we're here to help when these kinds of disagreements happen, preferably before they resemble a war :)